/* =========================================================
   FLOW — charity: water inspired puzzle game
   Stylesheet
   ========================================================= */

:root {
  --yellow: #FFC907;
  --charcoal: #1A1A1A;
  --blue: #2E9CCA;
  --light-blue: #E8F7FC;
  --white: #FFFFFF;
  --success: #35A853;
  --warning: #F4A340;
  --error: #D94B4B;

  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 16px rgba(26, 26, 26, 0.08);
  --shadow-lift: 0 8px 28px rgba(26, 26, 26, 0.14);
  --transition: 180ms ease;

  --font-heading: "Poppins", "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  background: linear-gradient(180deg, var(--light-blue) 0%, #ffffff 55%);
  color: var(--charcoal);
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3,
.logo-title, .screen-title, .topbar-title, .result-title,
.building-name, .footer-heading, .town-complete-card h2,
.learn-card h2, .profile-card h2, .confirm-card h2 {
  font-family: var(--font-heading);
}

#app {
  position: relative;
  z-index: 2;
  min-height: 100vh;
}

h1, h2, h3 { margin: 0 0 0.4em 0; }
p { line-height: 1.5; }

/* ---------- Background ambient water ---------- */
.bg-water {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.bg-water .drop {
  position: absolute;
  top: -10%;
  font-size: 28px;
  opacity: 0.18;
  animation: fall 14s linear infinite;
}
.d1 { left: 8%;  animation-delay: 0s;  font-size: 22px; }
.d2 { left: 24%; animation-delay: 3s;  font-size: 34px; }
.d3 { left: 48%; animation-delay: 6s;  font-size: 20px; }
.d4 { left: 70%; animation-delay: 1.5s; font-size: 30px; }
.d5 { left: 88%; animation-delay: 8s;  font-size: 24px; }

@keyframes fall {
  0%   { transform: translateY(-10vh) translateX(0); }
  100% { transform: translateY(110vh) translateX(20px); }
}

@media (prefers-reduced-motion: reduce) {
  .bg-water { display: none; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* ---------- Layout wraps ---------- */
.home-wrap, .panel-wrap, .puzzle-wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.screen { display: none; }
.screen.active { display: block; animation: fadeIn 220ms ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Card base ---------- */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 20px;
}

/* ---------- Buttons ---------- */
.btn {
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 22px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  touch-action: manipulation;
}
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

.btn-primary {
  background: var(--yellow);
  color: var(--charcoal);
  box-shadow: 0 4px 0 #d9a600, var(--shadow-card);
}
.btn-primary:hover { box-shadow: 0 5px 10px rgba(255, 201, 7, 0.45); }

.btn-lg { padding: 16px 32px; font-size: 18px; border-radius: var(--radius-lg); }

.btn-secondary {
  background: var(--light-blue);
  color: var(--blue);
}
.btn-secondary:hover { background: #d7f0fa; }

.btn-ghost {
  background: transparent;
  color: var(--charcoal);
  opacity: 0.7;
}
.btn-ghost:hover { opacity: 1; }

.btn-danger {
  background: var(--error);
  color: var(--white);
}

.btn-sm { padding: 8px 14px; font-size: 13px; }

.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.link-btn {
  background: none;
  border: none;
  color: var(--blue);
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  text-decoration: underline;
}

.icon-toggle {
  background: var(--light-blue);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
}
.icon-toggle[aria-pressed="false"] { opacity: 0.4; }

/* ========================================================
   HOME SCREEN
   ======================================================== */
.home-header { text-align: center; margin-bottom: 24px; }

.logo-badge {
  width: 84px; height: 84px;
  margin: 0 auto 8px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #5ecbf0, var(--blue));
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lift);
  animation: bob 3s ease-in-out infinite;
}
.droplet-icon { font-size: 42px; filter: drop-shadow(0 2px 2px rgba(0,0,0,0.2)); }

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.logo-title {
  font-size: 46px;
  font-weight: 800;
  color: var(--blue);
  letter-spacing: 1px;
}

.tagline {
  font-size: 18px;
  font-weight: 700;
  color: var(--yellow);
  background: var(--charcoal);
  display: inline-block;
  padding: 4px 16px;
  border-radius: 20px;
  margin: 4px 0 14px;
}

.home-desc {
  max-width: 560px;
  margin: 0 auto;
  color: #444;
  font-size: 15px;
}

.home-stats {
  display: flex;
  justify-content: space-around;
  text-align: center;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 4px; min-width: 110px; }
.stat-label { font-size: 12px; color: #777; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 22px; font-weight: 700; color: var(--blue); }

.home-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
  max-width: 360px;
  margin: 0 auto;
}

.home-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

/* ========================================================
   TUTORIAL
   ======================================================== */
.screen-title { text-align: center; color: var(--blue); font-size: 28px; }

.tutorial-steps {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.tutorial-steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 14px 16px;
}
.step-num {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.tutorial-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================================
   PUZZLE SCREEN
   ======================================================== */
.puzzle-topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.topbar-info { flex: 1; min-width: 160px; }
.topbar-title { font-weight: 800; color: var(--blue); font-size: 18px; }
.topbar-sub { font-size: 12px; color: #777; }
.topbar-stats { display: flex; gap: 18px; }
.mini-stat { display: flex; flex-direction: column; align-items: center; }
.mini-label { font-size: 10px; text-transform: uppercase; color: #999; }
.mini-value { font-weight: 700; color: var(--charcoal); font-size: 16px; }

.leakage-banner {
  background: #fff3e2;
  border: 1px solid var(--warning);
  color: #8a5a10;
  border-radius: var(--radius-md);
  padding: 10px 16px;
  margin-bottom: 16px;
  font-size: 14px;
}
.leakage-banner.hidden { display: none; }
.leakage-banner.leakage-banner-waived { background: #eaf7fd; border-color: var(--blue); color: #1a5a74; }

#puzzle-timer-wrap.hidden { display: none; }
#puzzle-timer-wrap .mini-value { transition: color var(--transition); }
#puzzle-timer-wrap.timer-warning .mini-value {
  color: var(--error);
  animation: timerPulse 1s ease-in-out infinite;
}
@keyframes timerPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.water-supply-bar { margin-bottom: 18px; }
.supply-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding: 4px 0;
}
.remaining-row strong { color: var(--blue); font-size: 17px; }
.remaining-track {
  height: 10px;
  border-radius: 6px;
  background: #eef6fa;
  overflow: hidden;
  margin-top: 8px;
}
.remaining-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue), #5ecbf0);
  width: 100%;
  transition: width 220ms ease, background 220ms ease;
}
.best-possible-note {
  margin-top: 10px;
  font-size: 13px;
  color: #8a5a10;
  background: #fff8ec;
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.best-possible-note.hidden { display: none; }

.town-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.building-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 16px;
  border: 2px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
}
.building-card.state-full { border-color: var(--success); }
.building-card.state-partial { border-color: var(--blue); }
.building-card.state-empty { border-color: var(--error); }

.building-card .critical-tag {
  position: absolute;
  top: -10px;
  right: 12px;
  background: var(--error);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 10px;
}

.building-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.building-icon-wrap {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  background: var(--light-blue);
  transition: background var(--transition), filter var(--transition);
}
.building-card.state-full .building-icon-wrap { background: #d9f3e2; filter: brightness(1.08); }
.building-card.state-empty .building-icon-wrap { background: #fbe3e3; }

.building-name { font-weight: 700; font-size: 16px; }
.building-demand { font-size: 12px; color: #777; }

.status-badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  white-space: nowrap;
}
.state-full .status-badge { background: #d9f3e2; color: var(--success); }
.state-partial .status-badge { background: #dbf0fa; color: var(--blue); }
.state-empty .status-badge { background: #fbe3e3; color: var(--error); }

.building-progress-track {
  height: 14px;
  border-radius: 8px;
  background: #eef2f3;
  overflow: hidden;
  margin: 10px 0 6px;
  position: relative;
}
.building-progress-fill {
  height: 100%;
  border-radius: 8px;
  background: var(--blue);
  width: 0%;
  transition: width 260ms ease, background 260ms ease;
}
.state-full .building-progress-fill { background: var(--success); }
.state-partial .building-progress-fill { background: var(--blue); }
.state-empty .building-progress-fill { background: var(--error); }

/* ---- Interactive water pipe (reservoir -> building) ---- */
.pipe-connector {
  height: 16px;
  border-radius: 8px;
  background: #e4edf0;
  overflow: hidden;
  margin: 2px 0 10px;
  position: relative;
  border: 1px solid #d6e4e8;
}
.pipe-fill {
  height: 100%;
  width: 0%;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--blue), #5ecbf0);
  transition: width 260ms ease, background 260ms ease;
}
.state-full .pipe-fill { background: linear-gradient(90deg, var(--success), #6fd98c); }
.state-empty .pipe-fill { width: 0% !important; }
.pipe-fill.pipe-flowing {
  background-image: linear-gradient(90deg, var(--blue), #5ecbf0),
    repeating-linear-gradient(135deg, rgba(255,255,255,0.35) 0 8px, transparent 8px 16px);
  background-size: 100% 100%, 28px 28px;
  animation: pipeFlow 900ms linear infinite;
}
@keyframes pipeFlow {
  0% { background-position: 0 0, 0 0; }
  100% { background-position: 0 0, 28px 0; }
}
.pipe-label {
  font-size: 10px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
  display: block;
}

/* ---- Dynamic water droplet FX ---- */
.water-droplet-fx {
  position: absolute;
  left: 4px;
  top: -2px;
  font-size: 16px;
  pointer-events: none;
  animation: dropletTravel 650ms ease-in forwards;
  z-index: 5;
}
@keyframes dropletTravel {
  0%   { left: 2%; opacity: 0; transform: scale(0.6); }
  15%  { opacity: 1; transform: scale(1); }
  100% { left: 96%; opacity: 0; transform: scale(0.8); }
}

.allocation-readout {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 8px;
  color: #555;
}
.allocation-readout strong { color: var(--charcoal); }

.allocation-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}
.alloc-btn {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: none;
  background: var(--light-blue);
  color: var(--blue);
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
}
.alloc-btn:active { transform: scale(0.92); }
.alloc-btn:disabled { opacity: 0.35; cursor: not-allowed; }

input[type="range"].alloc-slider {
  flex: 1;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: #e4edf0;
  border-radius: 6px;
  outline: none;
}
input[type="range"].alloc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--blue);
  cursor: pointer;
  border: 3px solid white;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
input[type="range"].alloc-slider::-moz-range-thumb {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--blue);
  cursor: pointer;
  border: 3px solid white;
}

.puzzle-footer {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ========================================================
   OVERLAYS / MODALS
   ======================================================== */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 26, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}
.overlay.hidden { display: none; }

.overlay-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lift);
  padding: 28px;
  max-width: 480px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  text-align: center;
  position: relative;
  animation: popIn 220ms ease;
}
@keyframes popIn {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.overlay-close {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--light-blue);
  border: none;
  border-radius: 50%;
  width: 32px; height: 32px;
  cursor: pointer;
}

.learn-card, .profile-card { text-align: left; }
.learn-card .btn { display: inline-block; margin-top: 8px; text-decoration: none; }

/* ---- Results overlay ---- */
.result-icon { font-size: 56px; }
.result-title { font-size: 26px; }
.result-message { color: #555; }

.result-efficiency {
  display: flex;
  align-items: center;
  gap: 18px;
  justify-content: center;
  margin: 16px 0;
  flex-wrap: wrap;
}
.eff-ring {
  width: 92px; height: 92px;
  border-radius: 50%;
  background: conic-gradient(var(--blue) 0deg, var(--light-blue) 0deg);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 18px;
  transition: background 500ms ease;
}
.eff-ring span { background: white; width: 68px; height: 68px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }

.result-zones { text-align: left; font-size: 13px; display: flex; flex-direction: column; gap: 4px; }
.result-zones .zone-row { display: flex; gap: 6px; align-items: center; }

.xp-award {
  display: flex;
  justify-content: center;
  gap: 8px;
  align-items: baseline;
  font-size: 15px;
  margin: 10px 0 2px;
}
.xp-award-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--success);
  animation: popScale 420ms ease;
}
@keyframes popScale {
  0% { transform: scale(0.4); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); }
}
.xp-note { font-size: 12px; color: #888; margin-bottom: 10px; }

.fact-box {
  background: var(--light-blue);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-size: 13px;
  color: #1a5a74;
  text-align: left;
  margin-bottom: 16px;
}

.result-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

/* result state color variants */
.result-success .result-icon { color: var(--success); }
.result-success .result-title { color: var(--success); }
.result-partial .result-icon { color: var(--warning); }
.result-partial .result-title { color: var(--warning); }
.result-failure .result-icon { color: var(--error); }
.result-failure .result-title { color: var(--error); }

/* ---- Town complete ---- */
.town-complete-icon { font-size: 50px; }
.impact-text { font-size: 15px; color: #444; }
.town-complete-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 16px 0;
}
.town-complete-stats div { display: flex; flex-direction: column; align-items: center; }
.town-complete-stats span { font-size: 26px; font-weight: 800; color: var(--blue); }
.town-complete-stats small { color: #888; font-size: 11px; text-transform: uppercase; }
.impact-disclaimer { font-size: 11px; color: #999; }

/* ---- Leaderboard ---- */
.leaderboard-note { font-size: 13px; color: #777; text-align: center; }
.name-edit { margin-bottom: 16px; }
.name-edit-row { display: flex; gap: 8px; margin-top: 6px; }
.name-edit-row input {
  flex: 1;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid #cfe4ec;
  font-size: 14px;
}
.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
}
.leaderboard-table th, .leaderboard-table td {
  padding: 10px 12px;
  text-align: left;
  font-size: 13px;
  border-bottom: 1px solid #f0f0f0;
}
.leaderboard-table th { background: var(--light-blue); color: var(--blue); }
.leaderboard-table tr.me { background: #fff8e0; font-weight: 700; }

/* ---- Confirm reset ---- */
.confirm-card p { font-size: 14px; color: #555; }

/* ---- Profile / Achievements ---- */
.profile-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 14px 0 18px;
}
.profile-stats .pstat {
  background: var(--light-blue);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
}
.profile-stats .pstat strong { display: block; font-size: 18px; color: var(--blue); }
.profile-stats .pstat span { font-size: 11px; color: #777; }

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}
.achievement {
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
  background: #f4f4f4;
  opacity: 0.5;
  font-size: 12px;
}
.achievement.unlocked {
  background: #fff6da;
  opacity: 1;
  box-shadow: 0 0 0 2px var(--yellow) inset;
}
.achievement .ach-icon { font-size: 22px; display: block; margin-bottom: 4px; }

.profile-settings {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

/* ---- XP Toast ---- */
.xp-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--success);
  color: white;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 20px;
  box-shadow: var(--shadow-lift);
  z-index: 200;
  animation: toastIn 2.4s ease forwards;
}
.xp-toast.hidden { display: none; }
@keyframes toastIn {
  0%   { opacity: 0; transform: translate(-50%, -12px); }
  10%  { opacity: 1; transform: translate(-50%, 0); }
  85%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -8px); }
}

/* ---- Confetti ---- */
.confetti-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 300;
  overflow: hidden;
}
.confetti-piece {
  position: absolute;
  top: -5%;
  font-size: 20px;
  animation: confettiFall 1.8s ease-in forwards;
}
@keyframes confettiFall {
  0%   { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}

/* ========================================================
   DIFFICULTY SELECT
   ======================================================== */
.difficulty-sub { text-align: center; color: #666; font-size: 14px; max-width: 520px; margin: 0 auto 20px; }

.difficulty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}
.difficulty-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 18px;
  border: 3px solid transparent;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  text-align: center;
}
.difficulty-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.difficulty-card.selected { border-color: var(--blue); background: var(--light-blue); }
.difficulty-card .diff-icon { font-size: 34px; display: block; margin-bottom: 6px; }
.difficulty-card .diff-name { font-weight: 800; font-size: 17px; margin-bottom: 6px; color: var(--charcoal); }
.difficulty-card .diff-desc { font-size: 13px; color: #555; margin-bottom: 10px; }
.difficulty-card .diff-rules { list-style: none; padding: 0; margin: 0; font-size: 12px; color: #777; text-align: left; }
.difficulty-card .diff-rules li { padding: 2px 0; }
.difficulty-card:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

/* ========================================================
   MILESTONES PANEL
   ======================================================== */
.milestones-panel { margin-bottom: 18px; }
.milestone-progress { margin-bottom: 12px; }
.milestone-progress-label { font-size: 13px; color: #555; margin-bottom: 6px; font-weight: 600; }
.milestone-progress-track {
  height: 12px;
  border-radius: 7px;
  background: #eef2f3;
  overflow: hidden;
}
.milestone-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--yellow), var(--blue));
  transition: width 400ms ease;
}
.milestone-list { display: flex; flex-direction: column; gap: 8px; }
.milestone-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f6fafb;
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  opacity: 0.55;
}
.milestone-item.unlocked { opacity: 1; background: #fff6da; box-shadow: 0 0 0 2px var(--yellow) inset; }
.milestone-item .milestone-icon { font-size: 22px; }
.milestone-item div { flex: 1; display: flex; flex-direction: column; }
.milestone-item strong { font-size: 13px; }
.milestone-item span:not(.milestone-check):not(.milestone-lock) { font-size: 11px; color: #888; }
.milestone-check { color: var(--success); font-weight: 800; }
.milestone-lock { opacity: 0.5; }

.milestone-toast { background: var(--blue) !important; }

/* ========================================================
   RESULT SUMMARY EXTRAS
   ======================================================== */
.result-summary-counts {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  background: var(--light-blue);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  margin: 2px 0 10px;
}
.xp-total-row { font-size: 13px; color: #666; margin-bottom: 10px; }
.xp-total-row strong { color: var(--charcoal); }

/* ========================================================
   CHARITY: WATER FOOTER
   ======================================================== */
.site-footer {
  position: relative;
  z-index: 2;
  background: var(--light-blue);
  border-top: 3px solid var(--yellow);
  padding: 28px 20px 36px;
  margin-top: 20px;
}
.footer-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.footer-heading { color: var(--blue); font-size: 20px; }
.footer-desc { font-size: 13px; color: #3a5a66; margin: 8px 0 16px; }
.footer-links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.footer-links .btn { text-decoration: none; display: inline-block; }

/* ========================================================
   RESPONSIVE
   ======================================================== */
@media (max-width: 860px) {
  .town-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .home-wrap, .panel-wrap, .puzzle-wrap { padding: 16px 12px 48px; }
  .logo-title { font-size: 36px; }
  .puzzle-topbar { flex-direction: column; align-items: stretch; text-align: center; }
  .topbar-stats { justify-content: center; }
  .puzzle-footer { flex-direction: column; }
  .puzzle-footer .btn { width: 100%; }
  .result-actions { flex-direction: column; }
  .result-actions .btn { width: 100%; }
  .profile-stats, .achievements-grid { grid-template-columns: 1fr 1fr; }
  .overlay-card { padding: 20px; }
  .difficulty-grid { grid-template-columns: 1fr; }
  .footer-links { flex-direction: column; align-items: stretch; }
  .footer-links .btn { width: 100%; }
}

@media (min-width: 1200px) {
  .town-grid { grid-template-columns: repeat(4, 1fr); }
}